R7739-B

View detailed technical data, stock status, and sourcing information for: R7739-B
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Federal Supply Group

Engine Accessories

Federal Supply Classification

2930 Nonaircraft Engine Cooling System Components

National Stock Number

2930-01-284-6944

Item Name Code

22138

Assigment Date

08/29/1988 (37 years ago)

A pressed metal item, circular in shape, designed to facilitate and expedite the welding of joints in steel pipe and tubing. It is split longitudinally and fits inside the two pieces to be welded. A central ridge assures alignment and spacing. When welding is completed, the ring forms an integral part of the joint.

1 filler neck quantity, 1 single tank center tank quantity, not included coolant level elbow check valve, included filler neck, not included valve casing

Product Characteristics

Below you’ll find the complete technical specifications and performance data for this part, including material details and compliance information.

Tank Quantity: 1 single tank center
Filler Neck: included
Filler Neck Quantity: 1
Valve Casing: not included
Coolant Level Elbow Check Valve: not included
Fan Shroud: not included
Mounting Feature: not included

Related Parts

This NSN group includes multiple components designed to meet specific performance and operational standards. Each listing provides detailed specs, functionality data, and replacement compatibility information:

Part Number	Name
111-505	Engine Coolant Radiator
R7739-B	Engine Coolant Radiator

FAQs

Find helpful answers about installation, operation, maintenance, compliance, and troubleshooting.

What is the FSCG of the NSN 2930-01-284-6944?

The FSCG of the NSN 2930-01-284-6944 is 2930

Does the NSN 2930-01-284-6944 have a Schedule B code assigned?

Yes, the Schedule B code is 8708915000

Does NSN 2930-01-284-6944 require demilitarization?

Items subject to the export administration regulations (ear) in parts 730-774 of title 15, code of federal regulations (cfr) (ccli or ear99) and determined by dod to present a low risk when released out of dod control. No demil, mut, or end use certificate is required. May require an export licensefrom doc.

Does NSN 2930-01-284-6944 contain precious materials?

Item does not contain precious metal.

Does NSN 2930-01-284-6944 contain hazardous materials?

Indicates there is no data in the hmirs and the nsn is in a fsc not generally suspected of containing hazardous materials.

When the NSN 2930-01-284-6944 was assigned to the Federal Catalog?

It was assigned 37 years ago, on Mon, Aug 29, 1988